Cinch-packing.



R. R. KEITH.

GINOH PACKING.

APPLIOATION FILED MAR.11,1909.

98 1, 128. Patented Au 17, 1909.

Inve wtor/ I I y numeral 1 ROBERT R. KEITH, OF MILWAUKEE, WISCONSIN.

omen-recluse.

no.'ea1,12 s.

Specification of Letters Patent.

Patented Aug. 17, 1909.

Application filed March 11, 1009. serial n 482,777.

To all whom it may concern:

Be it known that I, ROBERT R. KEITH, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented a certain new and useful Cinch-Packing, of which the following is a specification, reference being had to the accompanying drawing, forming a part thereof.

This invention relates to packing, and the ple, compact and efficient arrangement of mechanism whereby a fluid tight joint may be established and maintained.

purpose of the invention is to provide a sim-- The packin of "my invention maybe applied in 'anyo I the various relations and with any of the various devices where a packing may necessary or deemed desirable in order to prevent for example, members whether'reciprocatable or rotatable or oscillatory, as in the case of piston rods, valve stems, etc., or to form a tight joint between members which are intended to be relthe passage of a fluid, as to form a joint around movable atively immovable with respect to ea ch other,

as in pipe fittings and pi e joints.

Referring to the drawings which accompany this specification and form a partthereof, Figure 1 illustrates 'in section my improved packin as applied to a piston rod, valve stem or ot er member which may be movable within the packing either by reciprocating therethrough or by rotating or oscillating within the packing; Fig. 2 is a section through the packing showing it applied upon a pipe; Fig. 3 is a section through the packing showingit applied to the end of a pipe; and Fig. is a vertical section ipe and member shown by Fig.

2 taken on t e line a-a of Fig. 2, looking the direction indicated by the arrows.

Referring specifically to the drawings, the

designates a pack my invention and which is the most essential element of my invention. This packing member 1 is a ring which is in fact a section of 'pipethe ends of which are square or in other words, lie in planes substantially dis posed at right angles to the axis of the ring. The internal diameter'of this packin memher 1 is preferably just large enoug to receive the member which it is intended to surround, as for exam Ie the piston rod or valve stem 2, shown by l ig. 1 of the drawings,or

ing member which forms a part of the subject matter of the pipes 3 and 4shown by Figs. 2 and3 of the drawings. An apertured retaining memenlarged to form a recess within which the packing member 1 is adapted to be received, as clearly illustrated by the drawings. This retainin member may assume any one of a multitu 'e of different forms as the particular application of the packing may require, as for example, the retaining member may be the gland 5 shown by Fig. 1, the bushings 6 and 7 shown by Figs. 2 and 3, or any other member whatever its form or use in connection with which the packing member 1 is contemplated to be used.

The gland 5 shown by Fig. 1 of the drawings, is any ordinary form of stuffing box gland, such as are ordinarily used in connec tion with steam cylinders, pumps, valves, etc., and the bushings 6 and 7 are any ordinary forms of bushings, the bushing 6 beingof a character to'permit the pipe 3 to pass entirely therethrough, while the bushing 7 is of a character to simply permit the end of pipe 4' to be received therein.

The retaining member or gland 5 is provided with the recess 8 and the retaining members or bushings 6 and 7 are rovide with the recesses 9 and 10 respective y, within which the packing member 1 is adapted to be received. The ends of the recesses are beveled as indicated by the reference characters 11, 12. and 13 respectively, whereby pressure which forces the packing member 1 against such beveled ends will cause it to clamp the member which it surrounds tightly and produce a fluid ti ht joint.

The pressure which forces the packing member against the beveled end of the retaining member may be obtained and exerted in an preferred or desirable manner, eit er by 'tl ie/use of a fluid under pressure or y suitable mechanical means.

Ordinarily in the use of my improved packing some mechanical means will be most convenient for forcin the packing member 1 against the bevele end of the recess of the retaining member, andI have illustrated in the drawings simple forms of followers. These followers illustrated by the drawings are ordinary types of followers used in connection with packing, the form shown in Figs. 1 and 2 being simplly an apertured plug which is adapted to shown by Flgs. 1 and 2 are of the same construction,they are designated by the same e screwed theretainin'g' members, and as the followers tion,

rounds, so as reference numeral 14. The follower 15 shown byvFig. 3 is of a different construcbut its construction is so clearly shown by the drawings that no specific description 1s necessary. a When a mechanical follower or equivalent member is used for forcin the acking member 1 against the bevele end 0 the recess of the retaining member, I refer to bevel the end of said follower w ich contacts with the packing member 1, as indicated by the re erence'characters 16 and 17 on Figs. 1 and 2, although the beveling of the follower may be d1s ensed with, as shown in the case of the 0 lower in Fig. 3.

The function and operation of my improved packing is as follows: When the packing member 1 or ring is forced against the beveled end of the recess in the retaining member, it is cinched or gripped around the pipe, rod or other member whichit surto produce a fluid tight joint, as will be readily apparent from an inspection of the drawings. i What I claim is: 1. The combination in a packing of an a ertured retaining member, the aperture t erein being enlarged to form a recess with a beveled end, and a ring, one end of which is s uare, which is adapted to be received within said recess with its s uare end restsaid recess.

2. The combination in a packing of an a ertured retaining member, the aperture t erein being enlarged to forin a beveled end, a ring, one end of which is square, which is adapted to be received withtherein being enlarged a recess with in said recess with its square end resting against the beveled end of said recess, and a follower for forcing said ring against the beveled end of the recess.

3. The combination in a packing of an apertured retaining member, the aperture to form a recess with a beveled end, a mug, the ends of which are square which is adapted to be received within said recess with one end resting against the beveled end of said recess, and a follower for forcing said ring against the beveled end of said recess, the end of the follower which contacts with said ring also bein beveled.

4. The combination in a pac ing of an apertured retaining member, the aperture therein'being enlarged to form a recess with a beveled end, a rlng, one end of which is square in sai recess with its square end resting against the beveled end of said recess, and a member disposed within said ring to be gripped by said ring.

5. The combination in a packing of an a ertured retaining member, the aperture t erein bein enlarged to form a recess with a beveled en and a ring, the ends of which are square, which is adapted to be received within said recess and rest against the beveled end thereof.

In witness whereof I-hereto affix my signature in presence of two witnesses. I

. ROBERT R. KEITH.

Witnesses FRANK E. DnNNr/r'r, W. E. RICHARDSON.

which is adapted to be received with- 

